21332224396 has 96 divisors (see below), whose sum is σ = 44480403072. Its totient is φ = 8762204160.

The previous prime is 21332224387. The next prime is 21332224423. The reversal of 21332224396 is 69342223312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38298150 + ... + 38298706.

It is an arithmetic number, because the mean of its divisors is an integer number (463337532).

Almost surely, 2^21332224396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21332224396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22240201536).

21332224396 is an abundant number, since it is smaller than the sum of its proper divisors (23148178676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21332224396 is a wasteful number, since it uses less digits than its factorization.

21332224396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1137 counting only the distinct ones).

The product of its digits is 93312, while the sum is 37.

The spelling of 21332224396 in words is "twenty-one billion, three hundred thirty-two million, two hundred twenty-four thousand, three hundred ninety-six".